Txhawm rau txhim kho lub neej ntawm cov raj xa dej, kev tsim cov kauv steel yeeb nkab manufacturers yuav ua rau nws nto, uas kuj yog ib kauj ruam ntawm kev tsim khoom. Cov kev siv feem ntau peb siv yog: tu, tshem tawm cov cuab yeej, pickling, thiab blasting tshuaj.
Kev ntxuav yog tsuas yog cov roj, plua plav, roj nplua nyeem thiab lwm yam khoom uas txuas rau saum npoo ntawm cov kav raj. Yog tias cov khoom siv tsis tuaj yeem ua tiav los ntawm kev ntxuav, lawv yuav xaiv los khaws. Ntawm lawv, nws tau muab faib ua ob hom: chemistry thiab electrolytic, uas muaj kev tiv thaiv corrosion ntawm cov kav dej.
Yog tias cov chaw tsim hluav taws xob rusty kauv rau saum npoo ntawm cov yeeb nkab yog siv los siv cov cuab yeej tshem tawm cov xeb thiab siv cov hlau hlau txhuam los ntxuav thiab txhuam qhov chaw kho. Yog hais tias qhov saum npoo ntawm cov yeeb nkab steel txuas nrog cov tawv nqaij tshwj xeeb uas muaj zog oxide, nws muaj peev xwm ua kom lub cuab yeej tsis tuaj yeem ntxuav los ntawm kev tshem tawm xeb.
Txoj hauv kev kawg los daws qhov zoo ntawm cov kauv raj yog nchuav cov xeb thiab tshem tawm cov xeb. Lub tshuab hluav taws xob muaj zog tsav cov hniav sib hloov ceev ceev, kom cov abrasives xws li steel xuab zeb, steel tshuaj, xaim ntu, minerals, thiab lwm yam. Kev kho mob tuaj yeem ua lub luag haujlwm hauv kev tshem tawm xeb.
